Rockwell Automation 1772-LV Mini-PLC - 2/15 Programmable Controller (Series B) Programming and Operations - Manual (Page 74)

Advanced Instruction Set
Chapter 6
6Ć17
Syntax: Actual programming techniques are described in the operations
section, chapter 9.
Here we will state general programming facts:
Uses one word of memory.
Processor does not scan the instruction until you program a jump to
subroutine instruction.
Up to eight subroutines can be programmed if you do not program any jump
instructions.
Do not next subroutine programs by inserting a jump to subroutine
instruction in the subroutine area.
Figure 6.9 illustrates the next group of instructions.
Figure 6.9
Jump Instructions
JMP
XX
XX
LBL
JSR
XX
RET
JUMP
LABEL
JUMP-TO-SUBROUTINE
RETURN
NOTE: XX = octal identification number